Arkham Nights Sheet info

Combat rating: -5

Defenses: Physical Resistance

Worshippers: Hastur's worshippers ride byakhee mounts that they call with enchanted whistles. Cultists are flying monsters and their combat rating is –2.

Power: The Unspeakable One - While Hastur stirs in his slumber, immediately after an investigator seals a gate, he or she must reduce his or her maximum Sanity by 1. (An investigator may seal a gate even if doing so would reduce his or her maximum Sanity to 0.)

Each time an investigator in Arkham is driven insane or devoured, raise the Terror
Level by 1.

Plots

Mythos Source

The name Hastur first appeared in Haita the Shepherd (1893), written by Ambrose Bierce, where he was a benevolent god of shepherds. Robert W. Chambers appropriated the name for use in his anthology The King in Yellow (1895). The first Mythos story to use the name was The Whisperer in Darkness (1930), written by H.P. Lovecraft.